125685

Appears in sequences

• a(n) = (n+1)*binomial(n+1,4).at n=17A027764
• Number of n X n binary arrays symmetric about the diagonal and under 90-degree rotation with all ones connected only in a 1 X 5 or 5 X 1 block.at n=24A145969
• Numbers n such that A000203(2*n) divides 2*n*A045917(n).at n=26A245629
• a(n) = n*(n + 11)*(n + 22)*(n + 33)/24.at n=27A264448
• a(n) is the number of subsets of {1..n} that contain exactly 4 odd and 1 even numbers.at n=42A333320
• a(n) is the number of subsets of {1..n} that contain exactly 1 odd and 4 even numbers.at n=42A333321
• a(0) = a(1) = a(2) = 1, for n > 2, a(n) = a(n-1) + a(n-k) + k with k = 3.at n=33A362256